Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Total net revenues	$ 998.0	$ 1,001.7
Cost of revenues:
Total cost of revenues	418.7	419.4
Gross margin	579.3	582.3
Operating expenses:
Research and development	232.5	227.6
Sales and marketing	239.2	228.5
General and administrative	59.3	68.2
Restructuring charges	8.9	15.3
Total operating expenses	539.9	539.6
Operating income	39.4	42.7
Other (expense) income, net	(11.1)	1.8
Income before income taxes	28.3	44.5
Income tax provision	7.9	13.4
Net income	$ 20.4	$ 31.1
Net income per share:
Basic (in dollars per share)	$ 0.06	$ 0.09
Diluted, (in dollars per share)	$ 0.06	$ 0.09
Weighted-average shares used to compute net income per share:
Basic (in shares)	330.8	348.1
Diluted (in shares)	335.1	352.7
Product
Total net revenues	$ 608.8	$ 618.7
Cost of revenues:
Total cost of revenues	269.0	270.0
Service
Total net revenues	389.2	383.0
Cost of revenues:
Total cost of revenues	$ 149.7	$ 149.4